1. Golden, B. L. and Assad, A. A., in Vehicle Routing: Methods and Studies. Studies in Management Science and Systems, Vol. 16. North Holland, Amsterdam, 1988
2. Casco, D., Golden, B. and Wasil, E., Vehicle routing with backhauls: models algorithm and case-studies. In Vehicle Routing: Methods and Studies, ed. B. Golden, A. Assad, Studies in Management Science and Systems, Vol. 16, North Holland, Amsterdam, 1988
3. Routing and scheduling of vehicle and 2 crews—state of the art;Bodin;Comp. Operations Research,1983
4. Federgruen, A. and Simchi-Levi, D., Analytical analysis of vehicle routing and inventory-routing problems. In Handbooks in Operations Research and Management Science, eds M. Ball, T. Magnanti, C. Monma, G. Nemhauser, to be published
5. The traveling salesman problem with pick-up and delivery;Mosheiov;European Journal of Operational Research,1994